Engineer / Consultant / Human
I build AI systems
that have to work.
Product engineering, operational systems, and technical problem-solving grounded in clear requirements and verifiable results.
INPUTDEFINESPECSTATE GRAPHBUILDVERIFYREJECTOUTPUTSHIP
Practice
Since 1998
25+ years building and operating systems
Scale
30,000+
Customers. Real people, real stakes.
Enterprise
Viacom · UN · Hilfiger
High-stakes environments
Approach
Spec-first
Define done. Build to it. Verify.
Current system
01 / Tenant dispute platform
Spec-first AI system for navigating housing disputes, with deterministic routing and explicit uncertainty boundaries.
Artifact
Pending
State graph · Verification output · Interface screenshot
Field Notes
04
AI stays a pilot when nobody defines what working means
Why spec-first engineering matters more than the model you choose.
03
The state graph is the product
Why logic belongs in deterministic code, not in prompts.
02
Thirty thousand edge cases
What running a service business teaches you that engineering school doesn't.
01
What a verification step actually does
On checking AI output before it reaches the user — and why most teams skip it.
How it gets built
Method
Illustrative brief / acceptance criteria
METHOD EXAMPLE — NOT PRODUCTION DATA SYSTEM: Public-service navigator MUST: — Identify the correct dispute type — Cite applicable source material — Surface the correct next action — Acknowledge uncertainty explicitly MUST NEVER: — Invent a regulation — Provide legal advice — Proceed if confidence < threshold SUCCESS WHEN: — User can take a real next step — No hallucinated facts in output
Operating History
I learned systems by being responsible for them.
1998
Enterprise infrastructure
Built systems for Viacom, Tommy Hilfiger, and the United Nations through j.u.m.p! inc.
2006
The Mac Support Store
Seventeen years, 30,000+ customers in Brooklyn. Closed deliberately when the era ended.
Now
AI systems with clear contracts
Spec-first delivery. Deterministic logic. Verification before shipping.
Bring me the problem
that isn't behaving.
Received. Jeff reads every message personally.